TARGET-DETECTION BY THE ECHOLOCATING BAT, EPTESICUS-FUSCUS

TARGET-DETECTION BY THE ECHOLOCATING BAT, EPTESICUS-FUSCUS
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DOI:
10.1007/bf00612808
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发表时间:
1982-01-01
期刊:
JOURNAL OF COMPARATIVE PHYSIOLOGY
影响因子:
--
通讯作者:
KICK, SA
KICK, SA
中科院分区:
其他
文献类型:
--
作者:
KICK, SA

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回声定位蝙蝠(E。fuscus)在2-选择心理物理程序中进行研究。E. fuscus可以在2.9米的距离检测4.8毫米直径的球体,在5.1米的距离检测19.1毫米直径的球体。回声检测的阈值对应于目标返回0 dB SPL [声压级]区域中的回声幅度的距离。显然,蝙蝠声纳的最大有效范围比以前的避障和目标拦截任务所显示的要大。
The long-range echo detection capabilities of echolocating bats (E. fuscus) were studied in a 2-choice psychophysical procedure. E. fuscus can detect 4.8 mm diameter spheres at a distance of 2.9 m, and 19.1 mm diameter spheres at a distance of 5.1 m. The threshold of echo detection corresponds to the distance at which a target returns an echo amplitude in the region of 0 dB SPL [sound pressure level]. Apparently, the maximum effective range of bat sonar is greater than previously indicated by obstacle avoidance and target-interception tasks.